Overflows
 

I've always had drilled tanks and have never used these external overflows. Do they work good and how problamatic are they? I picked up a 75G tank and looking to turn it in to a fuge and turning my present fuge which is 35G in to a frag tank. I'm looking at a CPR C-Siphon 300GPH one. Will it be sufficient or should I go bigger?

If you got time to source one the best overflow on the market is the LifeReef models. I have had good experience with the Eshopps brand overflows as well. I'm not a fan of the CPR overflows. They are designed to use the aqualifter pump to maintain prime which to me is a stopgap measure to fix a poorly designed overflow.

300gph should be plenty for a refugium. Are you going to gravity drain the refugium tank back to the sump?

Yup. Gravity feed to sump is the plan.

why not drill the tank

Well it was being stored at my place for a buddy. Well hes decided to sell it to me so i might as well put it online with my system. It's up a running and I really don't want to take it down to take to the glass shop. When I've taken tanks there before I can't pick up for a few days. I also don't know if it can be drilled and being lazy is another contributing factor.

Yeah if it's online it's a bit of a pita if its just water it's not bad. Drilling a tank is a piece of cake honestly once you get past the nerves. :redface:

I have used CPR and lifereef overflows. Both worked great but I would recommend the aqua lifter pump with the CPR.

I've got an Eshoppe and a Lifereef running and haven't had an issue.

i have a CPR, great craftmenship, works awsome great flow, still regret not drilling though :sad:

Thanks everyone. I was on J&L's site and the CPR overflow is what I see they carry. It does come with a pump for $110. I would rather drill as all my other tanks are drilled but not an option in this case.